JPH0767777B2 - Electric laminate - Google Patents
Electric laminateInfo
- Publication number
- JPH0767777B2 JPH0767777B2 JP61307544A JP30754486A JPH0767777B2 JP H0767777 B2 JPH0767777 B2 JP H0767777B2 JP 61307544 A JP61307544 A JP 61307544A JP 30754486 A JP30754486 A JP 30754486A JP H0767777 B2 JPH0767777 B2 JP H0767777B2
- Authority
- JP
- Japan
- Prior art keywords
- laminate
- double
- ultraviolet rays
- ultraviolet
- copper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Laminated Bodies (AREA)
- Non-Metallic Protective Coatings For Printed Circuits (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、ガラス繊維基材と、エポキシ樹脂など光透過
性のある熱硬化性樹脂を結合剤マトリックスとする電気
用積層板に関する。Description: TECHNICAL FIELD The present invention relates to an electrical laminate using a glass fiber substrate and a light-transmitting thermosetting resin such as an epoxy resin as a binder matrix.
（従来の技術） プリント配線板に電子部品を搭載する際に、回路上の不
必要な所にはんだがつかないようにするため、及び、導
体パターンを保護するため、ソルダーレジストを形成し
ている。このソルダーレジストのパターンは、液状感光
性樹脂を回路面に塗布、又は、感光性樹脂フィルムを回
路面に貼り付け、所定のパターンで紫外線を照射（露
光）し、不要部分の感光性樹脂を溶解除去（現像）して
形成される。(Prior Art) A solder resist is formed in order to prevent solder from sticking to unnecessary places on a circuit and to protect a conductor pattern when an electronic component is mounted on a printed wiring board. . The pattern of this solder resist is applied with liquid photosensitive resin on the circuit surface, or a photosensitive resin film is attached on the circuit surface, and ultraviolet rays are exposed (exposed) in a predetermined pattern to dissolve the photosensitive resin in unnecessary parts. It is formed by removing (developing).
エポキシ樹脂積層板のように、光透過性がある積層板で
は、レジストパターンを両面に形成するとき、片面側の
紫外線が透過して反対面の感光性樹脂を感光させ、正確
なパターン形成を妨げる。With a light-transmissive laminate such as an epoxy resin laminate, when resist patterns are formed on both sides, ultraviolet rays on one side are transmitted and the photosensitive resin on the other side is exposed, preventing accurate pattern formation. .
そこで、亜鉛華などの顔料、メチルバイオレット、ビク
トリアブルーなどの染料、オルトヒドロキシベンゾフェ
ノン類などの紫外線吸収剤、炭酸カルシウル、クレーな
どの充填剤を用いて、紫外線が透過しないようにしてい
る。Therefore, pigments such as zinc white, dyes such as methyl violet and Victoria blue, ultraviolet absorbers such as orthohydroxybenzophenones, and fillers such as calcium carbonate and clay are used to prevent transmission of ultraviolet rays.
（発明が解決しようとする課題） ところが、亜鉛華などの顔料、メチルバイオレット、ビ
クトリアブルーなどの染料、オルトヒドロキシベンゾフ
ェノン類などの紫外線吸収剤、炭酸カルシウル、クレー
などの充填剤を用いると、積層板の色相が通常品と変わ
ってしまうという問題があった。(Problems to be solved by the invention) However, when a pigment such as zinc white, a dye such as methyl violet or Victoria blue, an ultraviolet absorber such as orthohydroxybenzophenones, a filler such as calcium carbonate or clay is used, a laminated board is obtained. There was a problem that the hue of the product would change from the normal product.
本発明は、色相が通常品と大差なく、かつ紫外線を遮蔽
できる電気用積層板を提供することを目的とするもので
ある。An object of the present invention is to provide an electrical laminate which has the same hue as that of a normal product and can shield ultraviolet rays.
（課題を解決するための手段） 本発明は、銅箔と基板との間に、蛍光増白剤を含む樹脂
層を形成してなる電気用積層板である。(Means for Solving the Problems) The present invention is an electrical laminate comprising a resin layer containing a fluorescent whitening agent formed between a copper foil and a substrate.
蛍光増白剤としては、クマリン系、オキサゾリル系、チ
オフェン系などが挙げられる。Examples of the fluorescent whitening agent include coumarin-based, oxazolyl-based, and thiophene-based agents.
銅箔と基板との間に、蛍光増白剤を含む樹脂層を形成す
るには、基板と同種の樹脂ワニスに、蛍光増白剤を添加
し、銅箔に塗布する方法が最も簡便である。The easiest way to form a resin layer containing a fluorescent whitening agent between a copper foil and a substrate is to add the fluorescent whitening agent to a resin varnish of the same type as the substrate and apply it to the copper foil. .
（作用） 蛍光増白剤は、波長300〜400nmの紫外線を吸収して、可
視光を発する。このため、積層板本来の色相を損ずるこ
となく、紫外線を遮蔽できる。(Function) The fluorescent whitening agent absorbs ultraviolet rays having a wavelength of 300 to 400 nm and emits visible light. Therefore, the ultraviolet rays can be shielded without impairing the original hue of the laminated plate.
（実施例１） 厚み0.2mmのガラス繊維布基材エポキシ樹脂プリプレグ
を用意した。Example 1 A glass fiber cloth-based epoxy resin prepreg having a thickness of 0.2 mm was prepared.
別に、１重量％の蛍光増白剤（チバ・ガイキー社UBITEX
OB）を添加したエポキシ樹脂ワニスを、厚み18μｍの
銅箔の片面に塗布乾燥した。Separately, 1% by weight of optical brightener (UBITEX, Ciba-Geeky
The epoxy resin varnish containing OB) was applied to one surface of a copper foil having a thickness of 18 μm and dried.
前記プリプレグ４枚を重ね、その両外側に、前記銅箔
を、エポキシ樹脂塗布面がプリプレグと接するようにし
て重ね、加熱加圧して、両面銅張り積層板を得た。The four prepregs were superposed, the copper foils were superposed on both outer sides of the prepreg so that the epoxy resin-coated surface was in contact with the prepreg, and heated and pressed to obtain a double-sided copper-clad laminate.
（実施例２） プリプレグの枚数を６枚としたほかは実施例１と同様に
して、両面銅張り積層板を得た。(Example 2) A double-sided copper-clad laminate was obtained in the same manner as in Example 1 except that the number of prepregs was 6.
（実施例３） プリプレグの枚数を８枚としたほかは実施例１と同様に
して、両面銅張り積層板を得た。(Example 3) A double-sided copper-clad laminate was obtained in the same manner as in Example 1 except that the number of prepregs was eight.
（比較例１） 厚み0.2mmのガラス繊維布に、紫外線吸収剤（住友化学
工業株式会社Sumisorb300）を３重量％添加したエポキ
シ樹脂ワニスを含浸乾燥して、プリプレグを得た。Comparative Example 1 A glass fiber cloth having a thickness of 0.2 mm was impregnated with an epoxy resin varnish containing 3% by weight of an ultraviolet absorber (Sumisorb 300, Sumitomo Chemical Co., Ltd.) and dried to obtain a prepreg.
このプリプレグ４枚を重ね、その両外側に、厚み18μｍ
の銅箔を重ね、加熱加圧して、両面銅張り積層板を得
た。Four prepregs are piled up, and the thickness is 18μm on both outer sides.
The above copper foils were stacked and heated and pressed to obtain a double-sided copper-clad laminate.
（比較例２） プリプレグの枚数を６枚としたほかは比較例１と同様に
して、両面銅張り積層板を得た。Comparative Example 2 A double-sided copper-clad laminate was obtained in the same manner as in Comparative Example 1 except that the number of prepregs was 6.
（比較例３） プリプレグの枚数を８枚としたほかは比較例１と同様に
して、両面銅張り積層板を得た。(Comparative Example 3) A double-sided copper-clad laminate was obtained in the same manner as in Comparative Example 1 except that the number of prepregs was eight.
以上得られた各両面銅張り積層板について、紫外線透過
率、露光時に、露光反対面のレジスト残存有無及び色相
を調べた。その結果を表に示す。なお、試験方法は次の
通りである。With respect to each of the double-sided copper-clad laminates obtained above, the ultraviolet transmittance, the presence / absence of resist remaining on the surface opposite to the exposure during exposure, and the hue were examined. The results are shown in the table. The test method is as follows.
（紫外線透過率） 両面銅張り積層板から、銅箔を過硫酸アンモニウムで溶
解除去し、紫外線照射機（オーク製作所製）で700mJ/cm
2の紫外線を照射し、紫外線照度計（オーク製作所製UV
−MOIにより、２種のセンサUV−35、UV−42を使用）で
紫外線透過率を求めた。(UV transmittance) The copper foil was dissolved and removed from the double-sided copper-clad laminate with ammonium persulfate, and 700 mJ / cm with a UV irradiation machine (Oak Seisakusho).
Irradiate 2 ultraviolet rays, ultraviolet illuminance meter (UV manufactured by Oak Manufacturing Co., Ltd.
The ultraviolet transmittance was determined by -MOI using two types of sensors, UV-35 and UV-42).
（露光反対面のレジスト残存有無） 両面銅張り積層板の両面に液状レジスト（太陽インキ株
式会社製PSR−1000）をスクリーン印刷により塗布し、8
0℃で15分間乾燥した。次に、片面にネガフィルムを当
て、紫外線照射機により紫外線を照射露光後、現像し、
露光反対面にレジストの残存有無を観察した。(Presence or absence of resist remaining on the surface opposite to the exposure) Apply liquid resist (PSR-1000 manufactured by Taiyo Ink Co., Ltd.) to both surfaces of the double-sided copper-clad laminate by screen printing, and
It was dried at 0 ° C for 15 minutes. Next, apply a negative film on one side, irradiate with ultraviolet rays by an ultraviolet irradiator, and develop,
Whether or not the resist remained was observed on the surface opposite to the exposure.
（色相） 両面銅張り積層板から、銅箔を過硫酸アンモニウムで溶
解除去した積層板の色相を、蛍光増白剤を用いていない
積層板と比較した。(Hue) The hue of the laminate obtained by dissolving and removing the copper foil with ammonium persulfate from the double-sided copper-clad laminate was compared with the laminate without the optical brightener.
（発明の効果） 本発明によれば、銅箔と基板との間に蛍光増白剤を含む
樹脂層を形成したので、積層板の色相を変えることなく
紫外線を遮断でき、両面プリント配線板にレジストパタ
ーンを形成するとき、シャープなパターンを得ることが
できる。 (Effects of the Invention) According to the present invention, since the resin layer containing the fluorescent whitening agent is formed between the copper foil and the substrate, it is possible to block ultraviolet rays without changing the hue of the laminate, and to provide a double-sided printed wiring board. When forming the resist pattern, a sharp pattern can be obtained.
Claims (1)
脂層を形成してなる電気用積層板。1. An electrical laminate comprising a resin layer containing a fluorescent whitening agent formed between a copper foil and a substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61307544A JPH0767777B2 (en) | 1986-12-23 | 1986-12-23 | Electric laminate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61307544A JPH0767777B2 (en) | 1986-12-23 | 1986-12-23 | Electric laminate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63159044A JPS63159044A (en) | 1988-07-01 |
| JPH0767777B2 true JPH0767777B2 (en) | 1995-07-26 |
Family
ID=17970371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61307544A Expired - Lifetime JPH0767777B2 (en) | 1986-12-23 | 1986-12-23 | Electric laminate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0767777B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03254173A (en) * | 1990-03-02 | 1991-11-13 | Matsushita Electric Works Ltd | Electrical laminate |
| JP5098432B2 (en) * | 2006-12-05 | 2012-12-12 | 日立化成工業株式会社 | Metal foil with adhesive layer, metal-clad laminate and printed wiring board using the same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4916301A (en) * | 1972-05-20 | 1974-02-13 | ||
| JPS56146540U (en) * | 1980-04-03 | 1981-11-05 | ||
| JPS575076A (en) * | 1980-06-13 | 1982-01-11 | Hitachi Ltd | Hearing training aid |
| JPS5938034B2 (en) * | 1981-07-09 | 1984-09-13 | 日立機電工業株式会社 | Panel unit type fermenter |
| JPS63125940A (en) * | 1986-11-15 | 1988-05-30 | Matsushita Electric Works Ltd | Composite laminated plate |
-
1986
- 1986-12-23 JP JP61307544A patent/JPH0767777B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63159044A (en) | 1988-07-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |